Table 3. OxyHb signal-based cortical mapping analysis for motor imagery with feedback.

CH	MNI coordinates (X/Y/Z)	Cortical region	BA	t-value
A: Activated cortical regions under the real feedback condition (comparisons between real feedback vs. baseline)
Left sensorimotor cortex
4	−47/−8/57	PreCG	4/6	3.70
Left prefrontal cortex
1	−38/51/30	MFG	46	3.83
2	−45/36/43	MFG	9/46	3.23
Right prefrontal cortex
47	41/47/29	MFG	46	3.53
48	45/28/42	MFG	9/46	3.80
40	31/51/35	MFG	9/46	3.54
B: Activated cortical region under the sham feedback condition (comparisons between sham feedback vs. baseline)
Left prefrontal cortex
1	−38/51/30	MFG	46	3.89
2	−45/36/43	MFG	9/46	3.87
5	−26/56/35	MFG	9/46	3.28
12	−19/57/37	SFG	9	2.98
13	−18/40/50	SFG	9	3.54
Left parietal association cortex
25	−9/−61/72	Precuneus/SPL	5/7	2.67
Right prefrontal cortex
40	31/51/35	MFG	9/46	3.26
Right parietal association cortex
32	6/−61/70	Precuneus/SPL	5/7	2.55
C: Enhanced cortical regions under the real feedback compared with the sham feedback condition (comparisons between real vs. sham feedbacks)
Left premotor cortex
3	−46/11/53	MFG	6	2.93
D: Enhanced cortical regions under the sham feedback compared with the real feedback condition (comparisons between sham vs. real feedbacks)
Left parietal association cortex
25	−9/−61/72	Precuneus/SPL	5/7	2.60
Right parietal association cortex
32	6/−61/70	Precuneus/SPL	5/7	2.55

CH: channel number; BA: Brodmann area; PreCG: precentral gyrus; SFG: superior frontal gyrus; MFG: middle frontal gyrus; SMA: supplementary motor area; SPL: superior parietal lobule.